Wagon-brake.



No. 757,959. PATENTED APR. 19, 1904: N. PFEPFBR.

WAGON BRAKE.

' APPLICATION FILED Nov.11, 1903.

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N. PPEFFER.

WAGON BRAKE.

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N. PPEPFBR. WAGON BRAKE.

APPLICATION FILED NOV. 11, 1903.

N0 MODEL UNITED STATES Patented Apri119, 1904.

NICHOLAS PFEFFER, OF RIPLEY, OHIO.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent N0. 757,959, dated April19, 1904.

Application filed November l1, 1903. Serial No. 180,726. (No model.)

T0 all whom it may concern:

Be it known that I, NICHOLAS PFEFFER, a citizen of theUnited States,residing at Ripley, in the county of Brown and State of Ohio, haveinvented new and useful Improvements in Vagon-Brakes, of which thefollowing is a specification.

My invention relates to new and useful im provements in wagon-brakes;and its object is to provide mechanism whereby brakes on a wagon orother vehicle will be automatically applied to the wheels when thehorses are aked or when the vehicle is traveling down- A further objectis to provide means whereby a slight movement of the operating-loop uponthe tongue of the vehicle will be multiplied to such a degree as toimpart considerable movement of the brake-shoes.

A further object is to employ means whereby the application of thebrakes may be prevented while the vehicle is being moved backward.

Another object is to provide locking means of novel construction havinga releasing device adapted to be operated by the driver.

IVith the above and other objects in view the invention consists inproviding a brakebeam having shoes thereon, and these shoes are heldnormally removed from the wheels by means of a spring connected to thebeam.

A multiplicity of connected levers is located adjacent and connected tothe brake-beam, and these levers are adapted to be set in motion bymeans of a loop which pivoted to the outer end of the tongue of thevehicle and whichl is connected to the levers by suitable devicesprovided for that purpose. Spring-pressed jaws are mounted upon the gearof the vehicle adjacent the fifth-wheel, and these jaws are preferablyconcentric with the king-bolt of the vehicle. The jaws are arranged atopposite sides of a lug which extends upward from the connecting meanssecured to the levers and loop, and when the front axle of the vehicleis turned this lug is moved into either one of the jaws and locks thelevers of the brake against movement. A fork is located under the jawsand is connected to the whiftletree, and when said whiflietree isdepressed the fork raises the jaws and releases them from the lug.

The invention also consists in the further novel construction andcombination of parts hereinafter more fully described and claimed, andillustrated in the accompanyingdrawings,

showing the preferred form of my invention,A

and in which- Figure 1 is a plan view of the running-gear of a vehiclehaving my improved brake thereon and showing in dotted lines theposition of the Wagon-body. Fig. 2 is a bottom plan View of a Wagonhaving my improved brake applied thereto. Fig. 3 is a centrallongitudinal section through the wagon and brake mechanism. Fig. 1 is anenlarged plan view of the locking mechanism of the brake, one ofthe jawsbeing shown in engagement with the locking-lug. Fig. 5 is a plan View ofthe multiplying-levers in the positions assumed by them when thebrake-shoes are applied, and Fig. 6 is a perspective view of theoperatingloop of the tongue.

Referring to the figures by numerals of reference, 1 1 are axles havingwheels 2 mounted thereon, and the bolsters 1 of these axles areconnected by a reach 3, having hounds 4. extending therefrom. The frontaxle 1 has a tongue-hook 5 projecting therefrom, said tongue beingsecured to the axle by means of front hounds or braces 6. A king-bolt 7forms the pivot of the front axle. A crossbeam 8 is secured to the reach3 and the hounds 4 and has hooked arms 9 depending from the ends thereofand engaging and supporting a brake-beam 10, the ends of which areprovided with shoes 11, adapted to bear upon the rear wheels of thevehicle. The center of the beam is connected, by means of a coiledspring 1 2, with a lug 13, which depends from the reach 3 at a point infront of the brake-beam. This spring 12 serves to hold the brake-shoesnormally removed from the wheels. A bracket 14. extends rearwardly fromthe center of the brake-beam, and a similar bracket 15 is secured to therear axle 1. Arranged in each of these bracketsis a series ofcentrally-fulcrumed levers (numbered 16, 17, and 18, 19, and 20.) Thelever 18 is connected at one end to the bracket 14 by meansof a rod 21,and the other end of th-is lever is connected by a rod 22 with theopposite end of lever 16. The other end of lever 16 is connected by arod 23 with lever 19, and a rod 24 connects the other end of lever 19with one end of lever 1,7. This lever is connected, by means of a rod25, with the lower lever 20. A substantially V-shaped yoke 26 is pivotedat its ends to the front axle 1, as shown at 27, and the lower end ofthis yoke is connected to one end of a hooked rod 28, the other end ofwhich engages one end of the lever 20. A turnbuckle 29 is preferablyarranged within rod 28, which is to adjust the length thereof. A loop 30is pivoted to the rear end of the tongue 5 and is connected, by means ofa rod 31, with the lower end of yoke 26. This loop has anupwardly-extendinglug 32, which is engaged by the rod 31 and also by aiiexible rod 33, which extends forward and is pivoted to the upper endof a loop 34. This loop embraces the end of the tongue 5, and the lowerend 35 thereof is adapted to be secured to the neck-yoke -of a harness.Supporting-plates 36 lare secured upon the front hounds 6 and to thefront axle 1, and these plates have guide-brackets 37 thereon, in.

which are slidably mounted curved jaws 38.

These jaws are concentric with the king-bolt 7 and are slidably mountedin the front axle. 1. Pins 39 project upward from the jaws and in frontof the bolster 1, and these pins are held normally pressed against saidbolster by means of springs 40, which are secured to the front end ofthe reach 3 and in front of the A bracket 41 extends upward from thetongue 5 at its inner end, and pivoted in this bracket is a fork 42, theQ axle 1 and bolster 1a.

front end of which is` secured to a whiflietree 43, while the tinesthereof extend downward under the inner or forked ends of the jaws 38.Aroller 44 is preferablyjournaled within the bracket 41 and between thetines of the fork 42, and this roller forms a bearing for rod 33. f

The horses are harnessed to the loop 34 and the whiifletree 42, and whenthey are drawl the rod 33, and the loop 30 and its lug 32 are swungupward, thereby causing the rod 31 to swing yoke 26 forward. Rod 28therefore pulls upon the lever 20, and motion is transmitted from thislever to the other levers through the rods connecting the same andfinally from the lever 18 to the bracket 14 through rod 21. The beam 10will thus be drawn backward and apply the shoes 11 to the wheels 2, atthe same time tensioning the spring 12. When the backward pressure uponthe loop 34 is removed,the spring 12 will return all the parts to theirnormal positions. When the front axle of the vehicle is turned,the lug32, which is normally in position between the inner forked ends of jaws38, moves laterally into one or the other of these jaws, and thereforebackward pressure upon the loop 34 will not affect the brake for thereason that the parts thereof are locked against movement. I have shownthis position of the locking devices in Fig. 4. Should it be desired toapply the brake while the front axle is turned, it is merely necessaryto press downward on the whiffletree 43. The inner ends of the fork 42are thus swung upward against the jaws 38 and force them upward withinthe brackets 37 and out of the path of the lug 32. Subsequent to theoperation of locking the lug within either of the jaws 38 said lug canbe detached from the jaws in the same mannerwto wit, by pressingdownward on the whiffletree 43. It will be seen that the springs 40serve to' hold the jaws normally removed from the lug. By pressingeither of the jaws forward by means of its pin 39, so as to engage thelug 32, the operation of the brake at any time is .prevented, and saidbrake can only again be operated by first releasing the jaw from thelug. By arranging the levers 16 to 2O in the manner shown and describedthe leverage is greatly multiplied and the shoes 1l are drawn firmlyinto position upon the wheels thereby. The arms 9 are pivoted to thecross-beam 8, and therefore permit the backward and forward movement ofthe brake-beam 10.

In the foregoing description I have 'shown the preferred form of myinvention; but Ido not limit myself thereto, as I am aware thatmodifications may be made therein without departing from the spirit orsacrificing any of the advantages thereof, and Itherefore reserve theright to make such changes as fairly fall within the scope of' myinvention.

Having thus deseribed'the invention, what is claimed as new isi Y 1. Thecombination with the running-gear of a`vehicle having a brake-beamsuspended therefrom, and means for holding the beam normally removedfrom the wheels of the running-gear; of oppositely-disposed series oflevers, the levers of each series being arranged upon a single pivotconnected to the runninggear, means for connecting the levers of the twoseries together and with the brake-beam, a tongue extending from therunning-gear, a pivoted loop thereon, and connecting means between theloop and levers. l

2. The combination with the running-.gear of a vehicle having abrake-beam suspended therefrom, and automatic means for normally holdingthe beam removed from the wheels roo 4 IZO of the running-gear; ofoppositely-disposed series of levers, the levers of each series beingpivoted upon a single pin connected to the running-gear, rigidconnections between the levers and the beam and levers, a tongueextending from the running-gear, a pivoted loop thereon, a connectingdevice between the loop and levers, and means operated by the tongue forlocking the levers against movement.

3. The combination with the running-gear of a vehicle having abrake-beam depending therefrom, and a spring forholding the beamnormally removed from the wheels of the gear; of a tongue extending fromthe running-gear, an operating device pivoted thereto, a pivoted loopconnected to the operating device, a lug thereon, a rod connected to theloop, mechanism interposed between the rod and brake-beam, whereby thebeam is applied to the wheels of the gear by the movement of theoperating device, and a jaw slidably mounted upon the running-gear andadapted to engage the lug.

4. The combination with the running-gear of a vehicle having abrake-beam suspended therefrom, and means for applying the beam to thewheels of the running-gear; of oppositely-disposed spring-pressed jawsslidably mounted upon the running-gear, a loop pivoted to therunning-gear, a lug thereon between and adapted to be engaged by one ofthe jaws, a rigid connection between the lug and the brake-applyingmechanism, a tongue extending from the running-gear, and an operatingdevice pivoted thereto and connected to the lug.

5. The combination with the running-gear of a vehicle having aspring-controlled brakebeam suspended therefrom, and means for operatingthe beam and tensioning the spring; of oppositely-disposedspring-pressed jaws slidably mounted upon the running-gear, a looppivoted upon the running-gear, a lug thereon between and adapted to beengaged by one of the jaws, connecting devices between the lug and thebeam-operating mechanism, means for swinging the loop and its lug, and areleasing-fork engaging the jaws.

6. The combination with the running-gear of a vehicle having aspring-controlled brakebeam suspended therefrom, and means for operatingthe beam and tensioning the spring; of

oppositely-disposed spring-pressed jaws slidably mounted upon therunning-gear, a movable lug interposed therebetween and adapted to beengaged thereby, a yoke pivoted to the running-gear, rods connecting theyoke with the lug and with the beam-operating mechanism, respectively,and means for imparting movementto the lug.

7 The combination with the running-gear of a vehicle having aspring-controlled brakebeam suspended therefrom, and operating mechanismconnected to the beam; of brackets secured to the running-gear,oppositelydisposed spring-pressed jaws slidably mounted within thebrackets, a pivoted fork extending below the jaws and adapted to impartvertical movement thereto, a whiffletree connected to the fork, amovable lug normally interposed between and adapted to be engaged by oneof the jaws, connecting means between the lug and the beam-operatingmechanism, and means for operating the lug.

8. The combination with the running-gear of a vehicle having abrake-beam suspended.

therefrom, and mechanism for operating the beam; of brackets secured tothe running-gear, curved jaws slidably mounted therein, pins extendingfrom the jaws, springs bearing upon the pins, a movable lug between andadapted to be engaged by one of the jaws, means for Y operating the lug,and connecting devices between the lug and the beam-operating mechanism.

9. The combination with the running-gear of a vehicle having a pivotedaxle, a brakebeam suspended from the gear, and operating mechanismconnected to the brake-beam; of oppositelydisposed jaws connected to themovable axle, pins extending therefrom and adapted to be engaged by thestationary portion of the gear, springs for holding the pins normally incontact with said stationary portion, a movable lug normally interposedbetween and adapted to be engaged by one of the jaws, said lug beingconnected to the movable axle, connecting devices between the lug andthe beam-operating mechanism, a fork pivoted upon the running-gear andmovable with the pivoted axle, said fork extending under and adapted toimpart movement to the jaws, awhifletree secured to the fork, and meansfor imparting movement to the lug.

In testimony whereof I aiiix my signature in presence of two witnesses;

NICHOLAS PFEFFER. Witnesses:

LOUIs MAUsER,

PETER H. GREINER.

TOO

